實體交易不起作用

我嘗試過使用下面的代碼進行實體交易，但不幸的是，不適用於事務回滾。請幫幫我。實體交易不起作用

public void AddAGMDate() 
    { 
     DbTransaction Transaction = null; 
     using (EntityConnection DatabaseConnection = new EntityConnection("name=Insta_SAEntities")) 
     { 
      try 
      { 
       if (DatabaseConnection.State == ConnectionState.Closed) 
        DatabaseConnection.Open();//open connection 
      var CurrentContext = new Insta_SAEntities(DatabaseConnection); 
      Transaction = CurrentContext.Connection.BeginTransaction();//begin transaction 

      TR_AGMDatesEntityObject objAGMDates = new TR_AGMDatesEntityObject(); 
      objAGMDates.ClientID = Convert.ToInt64(ddlClientName.SelectedValue); 
      objAGMDates.AGMDate = Convert.ToDateTime(txtAGMDate.Text.Trim()); 
      objAGMDates.CreatedBy = 0; 
      objAGMDates.CreatedDate = Convert.ToDateTime(System.DateTime.Now); 
      objAGMDates.UpdatedBy = 0; 
      objAGMDates.UpdatedDate = Convert.ToDateTime(System.DateTime.Now); 
      int result = AGMDatesBL.AddAGMDate(objAGMDates); 

      if (true) 
      { 
       int n1 = 10, n2 = 0; 
       int res = n1/n2;//Error, want transaction to rollback (for taesting) 
      } 

      Transaction.Commit();//commit transaction 

      if (result == 1) 
      { 

       ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('AGM Date Successfully entered ');" + 
       "window.location.href='ManageAGMDate.aspx';", true); 
      } 
      else if (result == 2) 
      { 

       txtAGMDate.Text = ""; 
       ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('AGM Date Already Exist!');", true); 


      } 
      else if (result == 0) 
      { 
       ScriptManager.RegisterClientScriptBlock(Page, GetType(), "script", "alert('Unable to Add AGM Date!');" + 
       "window.location.href='ManageAGMDate.aspx';", true); 
      } 
     } 
     catch (Exception ex) 
     { 
      Transaction.Rollback();//rollback transaction 

      if (log.IsErrorEnabled) log.Error(string.Format("{0} ,Page URL={1}, Method Name={2} ,Error={3}", _LogMsgAdd, Request.Url.AbsoluteUri, MethodInfo.GetCurrentMethod().DeclaringType.FullName + "." + MethodInfo.GetCurrentMethod().Name, ex.Message.ToString())); 
      Session["error"] = ex.Message.ToString(); 
      Response.Redirect("~/Common/Errors/ErrorPageWM.aspx?ShB=Y", false); 
     } 
     finally 
     { 

      if (DatabaseConnection != null) 
      { 
       if (DatabaseConnection.State == ConnectionState.Open) 
        DatabaseConnection.Close(); 
      } 
     }

}

來源

2011-02-07 ykapase

我你不使用多個數據庫/服務器或者甚至是表中看到。所以你不需要額外的事務對象。英孚照顧這一點。因此將你的對象添加到對象集。然後在try catch塊中執行SaveChanges（）。即使您擁有多個實體，它也可以將其全部或全部保存起來。（這是EF4）我不知道如果您使用存儲過程艱難會發生什麼 – hazimdikenli 2011-02-07 13:17:00

您是否嘗試過使用System.Transactions.TransactionScope **呢？（這是在.NET中處理事務的常用方法）。

例如。

using (EntityConnection DatabaseConnection =   
    new EntityConnection("name=Insta_SAEntities")) 
    { 
    using(var transactionScope = new TransactionScope()) 
    { 
     TR_AGMDatesEntityObject objAGMDates = new TR_AGMDatesEntityObject(); 
     // Set properties... 

     int result = AGMDatesBL.AddAGMDate(objAGMDates); 

     // I have no idea what this logic does ... but I don't care, cause i'm just 
     // copying what u wrote. 
     if (true) 
     { 
      int n1 = 10, n2 = 0; 
      int res = n1/n2;//Error, want transaction to rollback (for taesting) 
     } 
     else 
     { 
      transactionScope.Commit(); 
     } 
    } 

    // The rest of your logic now happens here....

好了..所以如果你不去做一個Commit()的TransactionScope()塊內，然後它會自動做一個RollBack();否則，你可以強制回滾transactionScope.RollBack(); ..就像

if (true) 
{ 
    int n1 = 10, n2 = 0; 
    int res = n1/n2; 
    transactionScope.RollBack(); 
} 
else 
{ 
    transactionScope.Commit(); 
}

HTH。

****年輕球員的陷阱**：這個交易的東西代碼在System.Transactions.dll ..找到..所以確保你添加該組件。

enter image description here

來源

2011-02-07 11:45:49

實體交易不​​起作用

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實體交易不起作用